code: def test_minimum_inconsistent_types(self):
      if self.dtype1 == self.dtype2:
          return
      x1_data = numpy.random.uniform(-1, 1, (3, 2)).astype(self.dtype1)
      x2_data = numpy.random.uniform(-1, 1, (3, 2)).astype(self.dtype2)
      x1 = chainer.Variable(x1_data)
      x2 = chainer.Variable(x2_data)
      with self.assertRaises(type_check.InvalidType):
          functions.minimum(x1, x2)
  
file_path: chainer/tests/chainer_tests/functions_tests/math_tests/test_minimum.py
imports: import unittest
  import numpy
  import chainer
  from chainer import functions
  from chainer import testing
  from chainer.utils import type_check
label_desc: Use image node_id 1 for calling the TestMinimumInconsistentTypes obj's underlying member method code with example usage: obj.test_minimum_inconsistent_types() without return types